Furniture for paper-box dies and type compositions



July 12 1927.

W. W. SHINNICK FURNITURE FOR PAPER BOX DIES AND TYPE COMPOSITIONS Filed June 21. 1926 5 Sheets-Sheet 1 1,635,964 July 12 1927' w. w. SHINNICK FURNITURE FOR PAPER BOX DIES AND TYPE COMPOSITIONS Filed June 21. 192': 5 SheetsSh eet 2 I-weraizrr William m Skinnz'cl,

ditty 1,635,964 J 12 1927' w. w. SHINNICK FURNITURE FOR PAPER BOX DIES AND TYPE COMPOSITIONS Filed June 21. 1926 a $heets$heet 3 Patented July 12, 192 7,.

WILLIAM w. summon, oF BALTIMo'nn, MARYLAND.

res, PATENT OFFICE.

FURNITURE FOR PAPER-BOX DIES Ann TYPE COMPOSITIONS.

Application filed .l'une 21, 1926. Serial No. 117,477.

This invention relates to improvements in, furniture for forming paper box dies and for use in type compositions, and has for an object the provision of self-squaring furniture by means of which the dies may be formed in a simple and accurate manner, and which will be of Very strong, and at the same time, light construction. To this end, it is proposed to provide metallic furniture preferably of cast aluminum of subst'antially channel or inverted U-shaped cross-section. I

Heretofore, where metallic furniture has been used it has usually been either-in the form of cast iron or cast type metal. Such furniture, while eliminating the disadvantages, such as swelling and shrinking and warping :of wooden furniture, still possesses the great disadvantage of excessive weight, even though the metal furniture is made 1n skeleton form. i

A further object of the invention is to provide a furniture which when used. for paper box dies has an ample surface or marginal rib on the top or working face to permit the placing and holding of the compressible means, such as rubber or cork, for re leasing the blank from the die and stripping theblank from the cutting rules, even though a large proportion of the top surface has been removed in the interests. of light construction. g

Another object ofthe invention is the provision of a special clip attached to the ;re-

leasing means. and ,readilysecurab le to and releasable from the special furn ture, By

means of this clip the use of glueor other adhesive is entirely eliminated and so no scraping is necessary and eventual deformation of the furniture.obviatech 1 It "salso further proposedto providefurniture having an inclinedak-eyway so that when assembled-in .the form, a special key,

i also an object of the invention, can be 'in-- 4b serted so that the creasing and/or cutting rule will lineup perfectly, square,.and true. To that end also the special key is provided. with a notch or recess, to take the rule and hold it in place.

A still further object is to provide furniture which may be used in type composi tionsto frame the type, or as a .fillerfin type .forms. To this end it is proposed to form the furniture when of rectangularshape, to accurate printers dimensions and further to place the keyways at optional but definite distances from the corners of the furniture, so that the keyways of adjacent furniture will coincide. V

With these and other objects in View, an embodiment, of vthe invention is shown in the accompanying drawings and will be hereinafter more fully described with reference thereto. r I, In the accompanying drawings:

F 1g. I is a partial plan view of a set-up form showing the present embodiment of the improvedfurniture for cutting and scoring blanks for boxes;v

Fig. II is a: vertical section on line II II ofFig.I;.@ V

Fig; III is an enlarged section similar to Fig. II of another form of furniture showing. the manner in which the keys interlock the furniture and rules; 7 I

F g. V is aside elevation of one piece of the IIDPIOYGClfllIDltUIG showing the-keyy; a I

, Fig. V is a face view of the special key;

Fig. VI is an end view of such a key;

Fig. VIII is a fragmentary plan view of a, setup form similar to Fig. I, but showing rectangular furniture for cutting and scoring blanks as used for tuckend cartons;

Fig. VIII is an enlarged top plan view of that kind embracing a revolving impression cylinder and a reciprocating horizontal bed. The bed passes beneath the cylinder and in this bediis-placeda form containing cutting and scoring knives or rules, against which form the paper is pressed by the action of the cylinder asthe reciprocating bed asses beneath the same. The impression-0y inder is lifted free from ;the format each back stroke of the latter and the out blank stripped from .the machinein well known.

minum,

manner. The cutting and the scoring is usually accomplished by the use of metal strips preferably of soft steel which are arranged within a chase similar to that used by printers for holding a form of type, and held in place therein by furniture made either of wood or metal. The rules used for scoring are like those used for cutting, except that they are somewhat lower or narrower, so that they will merely indent or crease the blank without cutting it, at the same time that the cutting rules are operating to sever the blank from the sheet.

Referring to the drawings,the furniture according to this invention comprises blocks 1, preferably made of cast or moulded aluwith finished, straight, smooth side and top surfaces. Each block is of channel or inverted U-shape in general cross-section but does not preferably have a continuous solid top surface. In the interests of light weight-the top or working surface is cut through leaving a wide marginal flange or rib 2. The purpose of this ange or rib is to leave sufficient bearin surface to permit the placing on and holding of the strips or pieces of compressible releasing material, such as cork 3 or rubber 4, as usually employed to strip the cut blank from the cutting rules G and the scoring rules 3, and throw the cut blank from the form. Heretofore the marginal flange or rib formed on metallic furniture has been too narrow to permit its use in a practical, efficient man ner as die blocks in cutting paper boxes.

Each side '5 of the furniture is inclined inwardly or tapered so as to be thicker toward the top or working surface, as shown by the sections in Figs. II and III. When the furniture is of large size as shown by the centrally located blocks in Fig. I, it is provided with transversely extending cross walls or partitions 6, also tapered to be thickest near the top.

The furniture when of rectangular form is finished to accurate printers dimensions. Thus the furniture 7, in Fig. VII may illustrate, for example, a furniture 6 by 6 picas, the piece 8 in the same view, would then be 3'by 6 picas and piece 9, represent a piece 6 by S picas, and so on. This enables the ready use .of the furniture in type compositions and as filler for printers use, it being obvious that various point size pieces all to accurate printers dimensions are within the scope of the invention.

To assure that the box will fold up square and properly from the out blank, the rules whether scoring or cutting must not only line up perfectly and true in the assembled form F or F for instance, but must remain so during the operation ofthe press or machine. To assure this the furniture is provided with keyways 10 in which keys 11 are placed. Each keyway is located across the angle formed by the top and one side of the furniture and is inclined in the form of a by triangle with the short side in the top or working face of the furniture. Each key 11 is an equilateral triangle as shown in Fig. V. By having the keys in this shape no time is lost in setting up the form as a key can be set in place with any one of the three points down. The number and position of the keyways is optional, the only requirement being that the distances from the corner of the furniture be the same so that the keyways of adjacent furniture will coincide and aline. The key inserted in alined keyways in the abutting sides of two blocks holds them from sliding past each other, an important advantage when angular blocks and furniture as in Fig. I are locked up in the form.

Each one of the three sides of the triangular key 11 is provided with a nick or notch 12 of sufficient width to accommodate a cutting rule or a creasing rule. The notches 12 are of a depth to permit the cutting rule or creasing rule as the case may be, to be inserted in its proper place between the blocks and yet settle down far enough to be at a proper height above the surface of the furniture to perform its proper function. The keyways and keys thus assure the proper alinement of cutting rule G at the top of block 9 in Fig. VII with scoring or creasing rule S, extending to the right thereof.

In making paper boxes, the general practice has been to secure the resilient throwoff material to the top surface of the die blocks by gluing the cork 3 or rubber pieces 4 to the block. This necessitated the scraping off of the glue in setting up the form for the next job. The repeated scraping of the working surface in time so reduces the size of the block or nicks up the surface thereof that the block must be thrown away. This is particularly true when the furniture is made of soft metal or wood. According to my invention, the cork or rubber pieces are held by a small holder or sheet metal 15 of trough like form integrally provided with a downwardly extending curled over spring clip 16. This clip 16 resiliently snaps over and the end engages in a groove 17 provided for it on the under inner side of the wide marginal flange 2 of the furniture. The groove 17 extends completely around the under side of the flange 2 so that the clips of the corks can be set at any desired place.

The purpose of the resilient pieces 3 and 4 being to throw off the cut blank from the cutting rules C, it is obvious that not only must such corks 3 be placed close to the rules C, but also that the corks must be placed principally in the angles where two or more rules G meet. In Figs. VIII and X there is shown a rectangular cork piece'and the holder 15 thereof withthe clip 16 so arranged only at the center of the elongated side, that the cork piece can be placed clear up into the corner or angle between two cutting rules C as shown in Fig. VIII.

The resilient pieces 3 and 4 have not been shown in Figs. I and VII'in order not 'to obscure the showing of the other. features of the invention. Itis tobe understood, however, that such pieces are actually used in practice in cutting blanks from the layouts shown in those views. The rubber pieces 4 in Fig. II are of the usual form and are supposed to be held on the furniture by glue or other adhesive. 7

It is obvious that other forms of releasing means than those shown and described, may be similarly held by members 15 and secured to the furnitureby similar clips 16, the drawings and description of this part of the invention being merely illustrative of one embodiment thereof.

It is obvious that minor changes in the form, construction, size, combination and arrangement of the members of the new furniture of this invention may be made and substituted for those shown and described without departing from the nature and principle of the invention. To that end the disclosure is merely illustrative of one of many embodiments by which the invention may be carried out.

Having thus described my invention, what I claim is 1. A block for use as a die block or as printers furniture, having a skeleton form and of substantially inverted U-shaped cross-section with a wide marginal flange on its upper surface.

2. A block of light cast metal of skeleton form and having an inverted U-shaped crosssection with a wide marginal flange on its upper surface, for use as a die block or as printers furniture.

3. A block of skeleton form, having an inverted U-shaped cross-section with a wide marginal flange on its upper surface and its sides decreasing in thickness from the top downwardly, for use as a die block or as printers furniture.

4. A block as claimed in claim 1 with a groove on the inner under side of the flange. 5. A block as claimed in claim 2 with a groove on the inner under side of the flange.

wayicut intoitsupper surface and one side. 10. A'blo'ck as'claimed'in claim 1-with a keyway out" into one of its side faces.

11. Alilockas claimed in claim 2 wtith a keywaycut into one of its side faces.

A block as claimed in claim 3 with a "keyway cut into one of its side faces.

' 13. .A block'as claimed in claim 1 with R groove same inner under side of-th'eflange and having an inclined keyway cut into its upper-surface and one side.

14. ,A block as claimed in claim 2 with a groove on the inner under side of the-flange and having an inclined keyway cut into its upper surface and one side.

15. A block as claimed in claim 3 with a groove on theinner under side of the flange and having an inclined keyway cut into its uppersurface and one side.

' 16. The combination of a plurality of blocks for use as die blocks was printers furniture each block being provided with a keyway located in its side face and upper surface and coinciding with the similar keyway of another block and a key inserted in the coincident keyways to hold the blocks in position.

17. The combination of a plurality of blocks for use as die blocks or as printers furniture each block being provided with an inclined keyway located in its side face and upper surface and coinciding with the similar keyway of anotherblock, and a triangular key inserted in the coincident keyways to hold the blocks in position.

18. Furniture to be used in cutting blanks or in type compositions, comprising a triangular rey, and a plurality of blocks each provided with an inclined keyway cut across an upper edge so as to extend down one side and inward on the upper surface of the block, said key fitting into coincident keyways of the blocks and holding them in position.

19. Furniture to be used in cutting blanks or in type compositions, comprising a triangular key with a notch cut centrally into each side thereof, a plurality of blocks each provided with an inclined keyway cut across an upper edge so as to extend down one side and inward on the upper surface of the block, and a rule between the blocks and lying in a notch in the key, said key fitting into coincident keyways of the blocks and holding them in position. i

20. Furniture to be used in cutting blanks or in type compositions, comprising a key and a plurality of blocks each provided with a keyway into which the key fits for holding the blocks in position.

21. A block for use as a die block or as printers furniture, of skeleton form and having an inverted U-shaped cross-section with a'wide marginal flange on its upper surface, a groove on the inner under side 23. A block for use as a die block or as printers furniture, of skeleton form and having an inverted U-shaped cross-section with a wide marginal flange on its upper surface, a groove on the inner under side of the flange, and a spring clip cooperating with the groove for detachably securing compressible resilient throw-off means to the 20 surface of the block.

In testimony whereof I aflix my signature.

WILLIAM W. SHINNICK. 

